Nomaco imp25b12 Black Steel Nipple 1/2 Inch Npt 25 Pack

Product Description

The NOMACO imp25b12 is an assorted pack of 25 black carbon steel pipe nipples in 1/2 inch NPT sizing, built for threaded pipe assemblies in plumbing, mechanical, and gas distribution systems. Manufactured to ANSI/ASME B1.20.1 thread standards and rated for Schedule 40 service, these nipples deliver consistent thread engagement and reliable sealing when used with compatible fittings and pipe dope or PTFE tape. The black steel construction makes them a standard choice for natural gas and propane supply lines as well as hydronic heating and industrial fluid systems. Plumbers, pipefitters, and mechanical contractors reach for assorted packs when a range of nipple lengths is needed on a single job.

The imp25b12 assortment suits residential and light commercial applications where black steel threaded pipe is the specified material. Common install scenarios include gas supply branch lines, boiler room piping, fire suppression drops, and compressed air distribution. The 25-piece assorted format reduces the need to stock individual lengths separately, making it a practical choice for service vans and supply rooms alike. Each nipple in the pack is cut and threaded to NPT specification, ready for use without additional prep.

Key Features

• 25-piece assorted pack provides multiple nipple lengths in a single SKU
• Carbon steel construction suitable for gas, steam, hydronic, and compressed air service
• 1/2 inch NPT threads machined to ANSI/ASME B1.20.1 for consistent fit with standard fittings
• Schedule 40 wall thickness for full-pressure threaded pipe applications
• Black steel finish standard for gas line and mechanical room use

Compatibility

Designed as an OEM-style replacement and general-use component compatible with standard 1/2 inch NPT black steel threaded pipe systems and fittings meeting Schedule 40 requirements.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), or the International Plumbing Code (IPC) as required by the system type. Shut off and depressurize the line completely before removing or installing any threaded nipple. Apply an approved thread sealant or PTFE tape rated for the intended service medium before making up joints. Do not over-torque threaded connections on carbon steel nipples, as this can damage threads or crack fittings.

Technical Specifications

• Material: Carbon Steel
• Pipe Size: 1/2 inch
• Thread Type: NPT
• Thread Standard: ANSI/ASME B1.20.1
• Schedule: 40
• Quantity: 25 pieces per pack
• Finish: Black Steel

Standard Information

• Brand: NOMACO
• Manufacturer Part Number: imp25b12